система кодирования . Matemaatika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mat/%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0%20%D0%BA%D0%BE%D0%B4%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F/1/rus (21.06.2026)
система кодирования . Raamatukogusõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//rara/%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0%20%D0%BA%D0%BE%D0%B4%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F/1/rus (21.06.2026)
